Improvement in combined harrows and cultivators



W. MoBRAY.

Combined Harrow and Cultivator.

' Patent-ed Aug. 24.1875.

ILVFETBIB. PNOTWUYNOGRAPNER. WIvSHmGKON. D C.

, A by bolts.

UNITED STATES PATENT QFFICE- WILLIAM MoCRAY, or BLACK OAK, MISSOURI.

IMPR O VEMENT IN COMBINED HARROWS' AND CUL'l'IVATORS'.

Specification forming part of Letters Patent No. 167,002, dated August24, 1875; application filed v June 5, 1875.

To all whom it may concern:

Be it known that I, WILLIAM MGORAY, of Black Oak,in the county of Oaldwell and State of Missouri, have invented a new and useful Improvementin Combined Harrow and Gultivator, of which the following is aspecification:

Figure 1 is a side view .of my improved machine. Fig. 2 is a top view ofthe same. Fig. 3 is a detail side view of apart of one of the wings.Fig. 4. is a cross-section of the same, taken through the line as .00,Fig. 3. Fig. 5 is a detail view of a part of the rear end of themachine. I

Similar letters of reference indicate corresponding parts.

The invention will first be described in connection with drawing, andthen pointed out in the claims.

A is the main or central bar of the harrow, Which is made Wide and thin,is placed edge- Wise, and is faced upon its upper and lower edges tostrengthen it and prevent wear. The forward ends of the facing-platesproject a littie, and are notched to receive the clevis B and hold it inplace, the said clevis being secured by a verticalbolt passing throughits ends and through the said bar A. Several holes are formed throughthe clevis-bar to receive the draft, so that the point of draftattachment may be adjusted higher or lower, as may be desired. 0 are thewings, two, three, or more of which are used upon each side of thecentral bar A. The forward ends of the bars or wings C are pivoted toand between the ends of the curved metallic straps D, which are securedto the upper and lower edges of the bar The forward ends of the bars orwings G are connected and held in proper relative position by barsE, towhich they are secured by the same bolts that secure the said Wings tothe straps D. The rear ends of the bars or wings O are connected andheld in proper relative position by bars 1 secured to their upper sides.The connection between the ends of the wings O and the connectingbars Fis strengthened by the braces G, the

" lower ends of which are secured to the lower side of the ends ofsaidwings by the bolts that secure the bars F. The braces G inclineupward to the bars F, extend back along the unalways parallel with eachother.

der side of the said bars F,and are secured by the bolts that secure thesaid bars F to the next wing O. The rear ends of the bars F are curvedinward, and are bolted to the upper ends of the rear braces G. To andbetween the rear ends of the bars F and the rear braces G are securedthe outer ends of the two bars H, the inner ends of which overlap eachother, and are bolted to a plate, I, bolted to the upper side of therear end of the central bar A. Several holes are formed in the bars H toreceive the bolts by which they aresecured to the plate I, so that thewings 0 maybe expanded or contracted to make a wider or narrower cut, asmay be desired, the bars E F keeping the wings or bars 0 upon each sideJ are the wing teeth, which are curved outward and rearward, and aremadethin upon their forward edge. The upper parts or shanks of the teethJ have two holes formed through them to receive the bolts by which theyare secured to the wings O. A single hole is formed in the wings G foreach lower bolt, and two, three,

or more holes for each upper bolt, said holes being formed upon the arcof a circle having its center in the axis of the lower bolt, so that thesaid teeth may be set erect, or may be inclined to the rearward more orless, as may be desired. To the forward part of the central bar A,between its forward end and the inner ends of the forward wings, aresecured four teeth, K, two upon each side, by two bolts. The outer teethK are curved outward more than the inner teeth K, so that the four teethK may divide the space between the inner teet of the wings O evenly.

Whenthe machine is to be used for cultivating both sides of a row ofplants, all the teeth attached to the bar A may be removed, or only theinner ones of said teeth,according to the width of the space desired tobe left.

L are the handles, the forward ends of which are bolted to the turned-upends of a plate, M, bolted to the bar A, or to short arms attached tosaid plate. The rear parts of the handles L are bolted to the U-bar N,the ends of which are bolted to the plate I attached to the rear end ofthe bar A. The U-bar N may be strengthened by a cross bar or brace, 12.Several holes are formed in the handles L, in

the lugs or arms of the plate M, and in the U- bar N, so that the said.handles L may be adjusted as required. To the plate M,-aud to theforward part of the bar A, are bolted the bends of Two U-bars, O, to thearms of which are bolted two longitudinal bars, P, to support the seatQ. To the seat Q is attached a U as new and desire to secure by LettersPatent 1. The combination of the central bar A, the side bars or wingsG, the pivoted connectingbars D E F, and the adjustable connectingbarsH, with each other, to form the framework of the machine, substantiallyas herein shown and described.

2. The teeth J, constructed as described, and secured adjustably to thewings O, substantially as herein shown and set forth.

' WILLIAM MOORAY.

Witnesses: 1

Bron A. DUNN,

LEWIS B. CLENING.

